Judy Juan Xu

US Patent:

20030002563, Jan 2, 2003

Filed:

Jun 27, 2001

Appl. No.:

09/893143

Inventors:

Antti Kansakoski - Oulu, FI
Tom Kenney - San Diego CA, US
Jean-Marie Tran - San Diego CA, US
Judy Xu - San Diego CA, US

International Classification:

H04K001/00

US Classification:

375/130000

Abstract:

A code division, multiple access (CDMA) receiver includes an RF section for receiving a CDMA signal through a channel; a circuit for determining an instantaneous total received power (Io) of the received CDMA signal; and a searcher that is one of enabled for operation or disabled from operation in accordance with value of Io. The circuit includes a comparator for comparing Io against a threshold, and for generating a searcher trigger signal only when Io exceeds the threshold or, preferably, for generating the searcher trigger signal if Io does not exceed the threshold, within some predetermined period of time.